Structures and growth mechanisms of poly-(3-hydroxybutyrate) (PHB) crystallized from solution and thin melt film

• 来源期刊: 中国科学B辑(英文版)
• 年，卷（期）: 2008,（9）
• 页码范围: 853-858
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s11426-008-0093-5

摘要

The spherulitic structures and morphologies of poly-(3-hydroxybutyrate) (PHB) crystallized from a so-lution and a thin melt film were investigated in this study. The formation mechanisms of banded spherulites under different crystallization conditions are proposed. It was found that the formation of banded spherulites was caused by the rhythmic crystal growth of the spherulites and lamellar twisting growth for the polymer crystallization from a thin melt film and a solution, respectively.